Scheduled monument consent: applying under the 1979 Act

Works to a scheduled monument need scheduled monument consent under section 2 of the Ancient Monuments and Archaeological Areas Act 1979, decided by the Secretary of State on advice from the national heritage body, and entirely separate from the planning system. There is no fee. There is also no de minimis threshold worth relying on, and doing the work without consent is a criminal offence that does not require any intention to cause harm.

For a farmer or estate owner, the practical position is that a scheduled area behaves differently from the rest of the holding, and that difference has to be managed year by year rather than at the point a project comes up.

What scheduling protects and who decides

Scheduling identifies a monument of national importance and protects the monument itself, including the ground beneath it and anything within the scheduled area shown on the map. It covers far more than standing stones and castles: deserted medieval villages, ridge and furrow, moated sites, Roman roads, industrial remains, wartime structures.

The extent is defined by a map and a written description held on the national heritage list. Read both before assuming where the boundary runs. Scheduled areas frequently include a margin of land around the visible feature, and the field name and the hedge line are not the boundary.

Scheduled monuments are treated in national planning policy as designated heritage assets of the highest significance, so where planning permission is also required, substantial harm to them attracts the strictest policy test the Framework contains.

Works that need consent

Section 2 catches any works resulting in demolition, destruction or damage to a scheduled monument, any works for the purpose of removing or repairing it or making alterations or additions, and any flooding or tipping operations on the land.

Read that list with a farmer's eye and the breadth becomes clear.

• Deepening or altering drainage, including mole ploughing and subsoiling
• New fencing where posts are driven into the scheduled area
• Creating or resurfacing a track across the monument
• Tree planting, stump removal and scrub clearance with machinery
• Erecting a building, a feeder, a hard standing or a slurry store within the scheduled area
• Repair of a standing structure, even sympathetic repair using like materials

Metal detecting on a scheduled monument requires separate written consent and is an offence without it. That applies to permission given by a landowner as well: the landowner cannot authorise it.

Class consents and their conditions

The Ancient Monuments (Class Consents) Order grants consent in advance for defined categories of work, which is what keeps ordinary farming lawful on many scheduled fields.

The categories include certain agricultural, horticultural and forestry works that continue an existing practice, works by particular statutory bodies, works urgently necessary in the interests of health or safety, and certain works by the national heritage body itself. Each class carries conditions, and the conditions are where the limits sit.

The agricultural class is the one that matters most and the one most often misread. It covers continuing cultivation of the same kind, and it does not cover ploughing deeper than the land has previously been ploughed, nor a change from pasture to arable, nor drainage works. Where the safety class is relied on, written notice to the heritage body is normally required as soon as possible afterwards.

If there is any doubt about whether a class consent covers what you intend, ask before doing it. The advice is free and the alternative is a strict liability offence.

Making the application

Applications are made on the prescribed form with supporting information, and the quality of that information determines how long the process takes.

1. Establish the exact scheduled extent from the list entry and its map.
2. Describe the monument and its significance, drawing on the list entry, the historic environment record and any previous archaeological work.
3. Set out the works precisely, with drawings, a specification and the method and depth of any ground disturbance.
4. Explain why the works are necessary and what alternatives were considered.
5. Assess the effect on the monument, including on buried deposits, and set out mitigation.
6. Propose any recording or monitoring you are offering.

A Heritage Statement covering the significance and effect, supported where necessary by an Archaeological Desk-Based Assessment, is the usual package. For works involving significant ground disturbance, expect a request for an archaeological field evaluation before a decision, because the decision maker has to understand what is there.

Allow several months. Site visits are common, and an application that arrives with a clear specification and a plan showing exactly where each post hole goes moves faster than one that describes intentions in general terms.

Living with a monument on your land

Most owners of scheduled monuments never make an application. What they do instead is manage the land in a way that keeps the monument stable and keeps the work within the class consents.

Practical measures that reduce risk: keep stock off earthworks in wet conditions, mark the scheduled boundary on farm maps and give the contractor a copy, keep machinery off the area during cultivation, control burrowing animals and scrub before roots do structural damage, and record any new erosion with photographs.

Agri-environment schemes contain options for managing historic features, and the national heritage body offers advice and, in some circumstances, grant support for monuments at risk. Both are worth exploring before a monument deteriorates to the point where repair needs consent. The same logic applies to other designated landscape assets, since registered parks and gardens bring a consultation requirement rather than a separate consent.

An illustrative example. A moated site within a grass field was being poached by cattle around the water's edge each winter. The owner applied for consent to install a permanent fence line set back from the scheduled boundary, with post positions agreed and hand-dug under archaeological supervision. Consent was granted, and the erosion stopped. Had the fence gone in without consent, the offence would have been committed whether or not the monument benefited.

Offences and the strict liability position

Carrying out works to a scheduled monument without consent is an offence under the 1979 Act, and damaging a protected monument is a separate offence. Neither requires proof that you meant to cause harm.

There are limited statutory defences, including where works were urgently necessary for safety or health and proper notice was given. Ignorance that the land was scheduled is a weak position, because the designation is public, mapped and searchable.

The practical consequences reach beyond a fine. Agri-environment agreements can be affected, the site may be added to the heritage at risk register, and a subsequent planning application from the same owner is read in that light. Check the scheduled extent before the contractor arrives, and put it on the farm map.

This is general guidance, not legal advice; check the position with the national heritage body, your local planning authority or a qualified professional before relying on it.

To see which heritage documents a rural proposal is likely to need, check your land on PlanScope using its postcode.

PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.